From 5401166a07ebee3bc7c6202104349d3d173bce2c Mon Sep 17 00:00:00 2001
From: Ari Vuollet <ari.vuollet@goat.moe>
Date: Sat, 29 Mar 2025 17:53:28 +0200
Subject: [PATCH] Fix error when entering playmode while holding right mouse
 button

---
 Source/Editor/Viewport/EditorViewport.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Source/Editor/Viewport/EditorViewport.cs b/Source/Editor/Viewport/EditorViewport.cs
index 0df9f8aa1..13af558d2 100644
--- a/Source/Editor/Viewport/EditorViewport.cs
+++ b/Source/Editor/Viewport/EditorViewport.cs
@@ -1927,7 +1927,8 @@ namespace FlaxEditor.Viewport
 
             if (_isControllingMouse)
             {
-                OnControlMouseEnd(RootWindow.Window);
+                if (RootWindow?.Window != null)
+                    OnControlMouseEnd(RootWindow.Window);
                 _isControllingMouse = false;
                 _isVirtualMouseRightDown = false;
             }